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; RUN: opt -instcombine -S < %s | FileCheck %s
target datalayout = "p:32:32:32"
define i64* @test1(i8* %x) {
entry:
; CHECK-LABEL: @test1(
; CHECK: load i64, i64*
; CHECK: ret
%a = bitcast i8* %x to i64*
%b = load i64, i64* %a
%c = inttoptr i64 %b to i64*
ret i64* %c
}
define i32* @test2(i8* %x) {
entry:
; CHECK-LABEL: @test2(
; CHECK: load i32*, i32**
; CHECK: ret
%a = bitcast i8* %x to i32*
%b = load i32, i32* %a
%c = inttoptr i32 %b to i32*
ret i32* %c
}
define i64* @test3(i8* %x) {
entry:
; CHECK-LABEL: @test3(
; CHECK: load i64*, i64**
; CHECK: ret
%a = bitcast i8* %x to i32*
%b = load i32, i32* %a
%c = inttoptr i32 %b to i64*
ret i64* %c
}
define i64 @test4(i8* %x) {
entry:
; CHECK-LABEL: @test4(
; CHECK: load i32, i32*
; CHECK: zext
; CHECK: ret
%a = bitcast i8* %x to i64**
%b = load i64*, i64** %a
%c = ptrtoint i64* %b to i64
ret i64 %c
}
define i32 @test5(i8* %x) {
entry:
; CHECK-LABEL: @test5(
; CHECK: load i32, i32*
; CHECK: ret
%a = bitcast i8* %x to i32**
%b = load i32*, i32** %a
%c = ptrtoint i32* %b to i32
ret i32 %c
}
define i64 @test6(i8* %x) {
entry:
; CHECK-LABEL: @test6(
; CHECK: load i32, i32*
; CHECK: zext
; CHECK: ret
%a = bitcast i8* %x to i32**
%b = load i32*, i32** %a
%c = ptrtoint i32* %b to i64
ret i64 %c
}
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